import { renderToStaticMarkup } from "react-dom/server";import ReactMarkdown from "react-markdown";import remarkGfm from "remark-gfm";import { describe, expect, it } from "vite-plus/test"; import { remarkGithubAlerts } from "./markdown-github-alerts"; function renderMarkdown(markdown: string): string {  return renderToStaticMarkup(    <ReactMarkdown remarkPlugins={[remarkGfm, remarkGithubAlerts]}>{markdown}</ReactMarkdown>,  );} describe("remarkGithubAlerts", () => {  it("tags a quote whose first line is a marker, and drops the marker line", () => {    const html = renderMarkdown("> [!NOTE]\n> The content of the note.");     expect(html).toContain('data-alert="note"');    expect(html).not.toContain("[!NOTE]");    expect(html).toContain("The content of the note.");  });   it("keeps content that follows a marker-only paragraph", () => {    const html = renderMarkdown("> [!WARNING]\n>\n> ### A heading\n>\n> And a paragraph.");     expect(html).toContain('data-alert="warning"');    expect(html).not.toContain("[!WARNING]");    expect(html).toContain("A heading");    expect(html).toContain("And a paragraph.");  });   it("tags a quote whose next line opens with an inline node rather than text", () => {    const html = renderMarkdown("> [!NOTE]\n> **Medium Risk** Changes live transcript routing.");     expect(html).toContain('data-alert="note"');    expect(html).not.toContain("[!NOTE]");    expect(html).toContain("<strong>Medium Risk</strong>");    expect(html).toContain("Changes live transcript routing.");  });   it("reads the marker case-insensitively, normalizing the kind", () => {    const html = renderMarkdown("> [!important]\n> Read this.");     expect(html).toContain('data-alert="important"');  });   it("leaves a quote alone when the marker shares its line with anything else", () => {    const html = renderMarkdown("> [!NOTE] an ordinary quote");     expect(html).not.toContain("data-alert");    expect(html).toContain("[!NOTE] an ordinary quote");  });   it("leaves an unknown marker as the text it is", () => {    const html = renderMarkdown("> [!DANGER]\n> Not one of GitHub's.");     expect(html).not.toContain("data-alert");    expect(html).toContain("[!DANGER]");  });});